Our Taiga Styles page has previews of all the styles available for your Taiga Forum. All Taiga Styles are available for use on every Taiga Forum, so there's no need to download or install anything.

When you find a style you like, choose its name in the Current style dropdown in the Styles pane of your Admin panel. Your forum will change to that style instantly, and your users will be able to change their personal style as well.